Johan Haverkamp

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The phenomenon of 'internal residue loss' of protonated native- and per-O-methylated oligosaccharides has recently been described as occurring on high-energy collision conditions. Awareness of this(More)
An HPLC-ESI-MS/MS method using collision induced dissociation - multiple reaction monitoring was developed for the quantification of eight Hoodia gordonii steroid glycosides and their metabolites in(More)
Natural mixtures of sophorolipids produced by the yeast Candida bombicola have been analyzed by fast atom bombardment (FAB)-MS and collision-induced dissociation (CID)-MS. Some pure components have(More)